The Wedding Is Off! Katie Holmes & Jamie Foxx Call It Quits After 5 Years Together

In the midst of planning her dream wedding to Jamie Foxx, a source tells RadarOnline.com exclusively that Katie Holmes had a sudden change of heart.

Holmes, 39, may be relying on the support of her galpals even more in the coming months: Sources report that she and Foxx, 50, have split after five years of intense, covert dating — and have even called off the intimate dream wedding they’d been planning. "Katie just couldn’t get over her trust issues," said a pal.

A source says that after years of exhausting runarounds and denials, Katie and Jamie were ready to go public and celebrate their love with a wedding in Paris and a lavish honeymoon — to the tune of $300,000. Instead, claims the insider, “Katie’s called the whole thing off! She’s devastated.”

By the time Katie and Jamie struck up a romance in 2013 — a year after Katie’s six-year marriage to Tom Cruise imploded — they seemed intensely committed not just to each other, but to keeping the whole thing under wraps.

They went to great lengths not to be seen together, with Katie wearing a wig and hat on one date night, and darting out of separate restaurant exits on another. Jamie called reports of their relationship “fake news” and “hilarious,” and even walked off a live interview this February when the reporter dared mention Katie’s name.

The efforts at hiding, of course, were thwarted by the fact that the couple wanted to spend all their time together, and after a clearly romantic stroll down a Malibu beach last September, it seemed the cat was out of the bag for good. But months later — and after Katie’s alleged divorce agreement with Tom, promising to stay publicly single for five years, had expired — Katie and Jamie were still making clumsy attempts to keep their relationship hush-hush in December. They arrived at Jamie’s 50th-birthday bash in December separately, but couldn’t keep their hands off each other once they were inside.

A source claims that Jamie is the one who’s insisted on maintaining the “we’re just friends” facade, and that it finally became “humiliating” for Katie — especially since Jamie’s been spotted out in recent months with his ex and baby mama, Kristin Grannis (mom to his 8-year-old daughter, Annalise). After bringing Kristin to Leonardo DiCaprio’s birthday party in November, Jamie took her on a perfectly public lunch date in L.A. in February, and to see-and-be-seen Hollywood hotspot Nobu Malibu in April — moves that the source says Katie saw as a betrayal. “She had hoped that she and Jamie’s now-infamous walk on the beach would be the first of many public outings,” says the source, “but he still wanted to keep things hidden and status quo — even as he’s seen out with other women.”

Jamie’s been reluctant to let go of other single behaviors — including some recent bar-hopping in L.A. and New York, alongside an entourage of rappers and models. “It rubbed Katie the wrong way,” the source told RadarOnline.com exclusively. “It was hard for her not to feel jealous and worry about cheating, especially since Jamie’s a major flirt.”

The source claims that in trying to nip Jamie’s antics in the bud — and to ensure a stable future for her and Suri — Katie even went so far as to draw up a prenup with a no-cheating clause. “Jamie balked at the idea of signing,” claims the source, “because he realized that being unfaithful could be costly.” Adds the source, “Katie noticed a total lack of respect in Jamie’s behavior. She knew it wasn’t healthy for her or Suri, and she has to protect them both.”

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The breakup itself involved “no drama, no screaming fits or anger — just sadness when Katie called up Jamie to tell him she couldn’t do this anymore. He heard her out and said he was sorry.” Saying goodbye to Jamie — not to mention the wedding and future plans she’d been making — “was heartbreaking,” adds the source. “But in the end, she felt like she had no choice.”